Career
The goalkeeper was capped 58 times for Germany. Isbert"s career started at TuS Ahrbach. In 1989, she reached the final of the German championship, but Ahrbach failed to qualify for the Bundesliga at its inception one year later.
She then switched to Turn- und Sportverein Siegen, winning the championship in 1991 and 1992.
Siegen also came close to winning the cup in both seasons, losing out in finals to Grün-Weiß Brauweiler and FSV Frankfurt. After the season she lost her place in the starting eleven to Silke Rottenberg.
She was capped 58 times for Germany"s national team Her debut was on November 10, 1982 against Switzerland.
In the semifinal of the 1989 EURO against Italy, she held three times in the penalites, before scoring the deciding goal herself.
In 1991, she was also part of the team at the World Cup. The third place game against Sweden was her last cap.